1 files changed, 20 insertions, 0 deletions
diff --git a/androidApp/src/main/java/mx/trackermap/TrackerMap/android/devices/DevicesDiffCallback.kt b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/devices/DevicesDiffCallback.kt
new file mode 100644
index 0000000..40e6e9c
--- /dev/null
+++ b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/devices/DevicesDiffCallback.kt
@@ -0,0 +1,20 @@
+package mx.trackermap.TrackerMap.android.devices
+
+import androidx.recyclerview.widget.DiffUtil
+import mx.trackermap.TrackerMap.client.models.UnitInformation
+
+class DevicesDiffCallback(
+    private val oldList: List<UnitInformation>,
+    private val newList: List<UnitInformation>
+): DiffUtil.Callback() {
+    override fun getOldListSize() = oldList.size
+
+    override fun getNewListSize() = newList.size
+
+    override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int) =
+        oldList[oldItemPosition].device.id == newList[newItemPosition].device.id
+
+    override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int) =
+        (oldList[oldItemPosition].position?.id == newList[newItemPosition].position?.id) && newItemPosition != 0
+
+}
+\ No newline at end of file